A third party needs 5% of the popular vote to get future funding. Doesn't matter which party. I'd like to see Obama win but by less than a 5% margin over Romney. It wouldn't do any good for the Greens and the Libertarians to each get 4% of the vote, they wouldn't get funding. Someone needs 5%. It might matter if a 4th party can pull 1% but this shit is already complicated. Breaking duopolies ain't easy.